We are a business and constantly get calls from this phone number.  They call and ask for Human Resources but will never leave a message or talk to anyone besides who they ask for.

This number calls me sometimes 3X a day.  I don't answer and they don't leave a message.  I will answer the next time as I am very curious about the source.

This number calls a couple of times every day.  They never leave a message.  I decided to quench my curiousity and answer the call this PM.  The call is selling safety training brochures for supervisors and asks that you review two issues at no cost and to cancel by returing an invoice marked cancel.

I should have known better and not answered the phone.

Yup,

I also work in HR and have been getting this call the same time each morning...

They claim they are from the Yellow pages and want to upgrade our listing for free.

Same thing happens to me.  I work in HR, and they call a couple times a day but never leave a message.

They call me 2x a day for about a week now.  I never answer and they have never left a message.  I work in HR.

Got the same thing--call showes up on caller ID, no message.  When you call it all it says is "Robert DiCosta" is not available.

I handle a lot of book orders so perhaps this is related to some vendor who outsources.  They never leave a message.

I just recieve a call from this # I dont know what they want, I call back and I got a voicemail from a Robert.

I get a call from this number every day at approximately 10:30 a.m. CST.  No message is ever left and I have not answered the calls.